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Comment by api

1 year ago

The thing that collapses in a negative population growth environment is passive earnings from interest and asset appreciation, retirement, and to some extent social welfare states. The whole idea of things like social security is predicated on a growing population paying for the elderly. It's also very, very bearish for things like real estate long term. We are probably still in a real estate bubble.

I suppose I've never expected to ever be able to retire unless I get truly wealthy. It's not something I've ever included in my life plan because I've kinda seen the writing on the wall about this since I was in my twenties.

I don't think this crash in fertility is that unexpected, and it's not even all bad. It'll help us weather things like climate change and natural resource depletion.

Social security is solvent for at least the next 75 years if the US removes the payroll cap on contributions from wage income. We choose not to. The economic resources exist for these social programs, it will just diminish profits (the horror /s). It's a policy choice.

Every year total fertility rate remains lower than replacement rate further locks in the fertility curve, but there is no political will or desire to implement the fixes required. So, we keep kicking the can until we cannot anymore. It's unfortunate. Demographic destiny comes regardless, as each year total fertility rate continues to fall.

https://usafacts.org/articles/how-much-does-the-us-spend-on-...

https://www.pgpf.org/article/social-security-reform-options-...

  • By 2075, Medicare and Social Security will reach a over 14% of GDP combined, up from around 8% today. To pay that, we'll have to raise taxes by $1.75 trillion using today's GDP figures. That will require just about doubling payroll taxes from the present level.

    That's probably an underestimate. As population shrinks, GDP will shrink as well, unless we have large gains in productivity, which have stalled. It's not clear to me that the projections about SS/Medicare as a percentage of GDP account for the effect of GDP shrinking due to population decline. CBO assumes a stable population through 2060, using quite arbitrary assumptions about immigration: https://www.cbo.gov/publication/60875.

    • I agree with your observations. The future will not be as bright as the past, the population boom was already squeezed for the gains. Immigration at the levels needed to change this are unpalatable to most electorates, and with total fertility rate dropping across the world, it's important to be mindful that net migration to Earth is 0 (slide 39). As the economic future deteriorates due to the ever increasing drag of these obligations, I'd expect total fertility rate to continue to decline at present rates (if not slightly accelerate). This creates a self reinforcing feedback loop. A "Demographic Doom Loop" [1].

      Happiness is reality minus expectations.

      [1] https://x.com/KenRoth/status/1753526235173450213 | https://archive.today/rY4WG

      5 replies →

You can retire the other way around - since you need roughly $20 saved for every dollar you need in retirement, reducing expenses by a dollar is as good as saving $20.

  • That presumes knowing in advance what the dollar can buy you.

    Here's a reductio ad absurdum: a couple live alone on an isolated island, they have and raise one child, and when they reach 67 they stop working and expect their progeny to provide for them as they were provided for in childhood.

    Two parents provided for three people, became three adults providing for three people, became one adult providing for three people.

    And when that kid reaches 67 and also decides to stop working? Now nobody's around to provide for them, so nothing is provided.

    (What will happen in the non-reductio case is much more complex and unpredictable, between the never-ending potential of nuclear wars, and the ongoing but never guaranteed promise of technological progress currently dangling AI and robotics before us like a laser pointer to a cat…)